CE-1立体相机影像与激光高度计数据不一致性分析

直接利用CE－1激光高度计测高数据制作月球表面模型，分辨率、精度都较低。利用激光测高数据改善三线阵CCD数据立体定位精度是一种有效方法。通过计算立体影像外定向参数、激光脚印（footprint）月固坐标，基于物方空间到像方空间的快速反投影算法，分析研究立体影像与激光高度计数据不一致性，目的是为后续CE－1探月三线阵影像数据与激光测高数据联合平差处理提供相对基准控制。通过不一致性分析试验，得到一些有益的结论，这些分析结果有望在下一步联合平差处理中获得应用。

Inconsistency Analysis of CE-1 Stereo Camera Images and Laser Altimeter Data

Direct georeferencing to CE-1 laser altimetry data results in relatively low resolution and accuracy for lunar’s DSM.The use of laser altimetry data to improve three-line array CCD data positioning accuracy is an effective method.An analysis approach of stereo image and laser altimeter data inconsistency is proposed which project each CE-1 laser footprints to CE-1 CCD three scan images using their exterior orientation parameters obtained from satellite auxiliary data about time and the laser footprints moon-fixed coordinate.The inconsistency analysis is for the purposes of subsequent lunar image and laser altimeter data combined adjustment constraints.Some useful conclusions are drawn by analyzing inconsistency experiments.The results show that the CE-1 laser altimeter ranges are expected to be incorporated into the bundle adjustment as measurements to improve accuracy of CE-1 image photogrammetric reduction in the next step.